I know I've seen this car advertised before but just can't remember when and where.
Interesting that the seller says the winning bidder "will receive contact info of person with possession of complete original engine and trans (he is willing to sell)." I can only think of a few reasons why the seller wouldn't just make the deal and sell the car complete with its original drivetrain....
Link to 1964 Impala Super Sport auction
41447J176597